Pólya, George,  1887-1985 <br/><br/>
Mathematical discovery :  On understanding, learning, and teaching problem solving / 

 - # combined ed. 
 - 220 páginas 
<br/><br/><label>ISBN: </label>0471089753 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Matemáticas--Problemas, ejercicios, etc.
<br/><br/><label>LC Class. No.: </label>QA43  / P62 1981